oci_field_is_null

    (PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)

    oci_field_is_null — Checks if a field in the currently fetched row is null

    Description

    oci_field_is_null(resource $statement, string|int $column): bool

    Checks if the given column from the current row of statement is null.

    Parameters

    statement

    A valid OCI statement identifier.

    column

    Can be the field's index (1-based) or name.

    Return Values

    Returns true if column is null, false otherwise.

    Examples

    Example #1 oci_field_name() example

    <?php

    // Create the table with:
    // CREATE TABLE mytab (c1 NUMBER);
    // INSERT INTO mytab VALUES (1);
    // INSERT INTO mytab VALUES (NULL);

    $conn = oci_connect("hr", "hrpwd", "localhost/XE");
    if (!    $conn) {
    $m = oci_error();
    trigger_error(htmlentities($m['message']), E_USER_ERROR);
    }

    $stid = oci_parse($conn, "SELECT * FROM mytab");
    oci_execute($stid);

    while ((    $row = oci_fetch_array($stid, OCI_RETURN_NULLS)) != false) {
    $ncols = oci_num_fields($stid);
    for (    $col = 1; $col <= $ncols; $col++) {
    var_dump(oci_field_is_null($stid, $col));
    }
    }

    // Outputs:
    // bool(false)
    // bool(true)

    oci_free_statement($stid);
    oci_close($conn);

    ?>

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    User Contributed Notes 1 note

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    Raju Joseph [RajuJoseph at usa dot net]
    20 years ago
    <?php

    // Connect to Oracle database.

    // Username : Raju
    // Password : Password
    // Database : Database_name

    $conn=OCILogon("Raju", "Password", "DATABASE_NAME");
    if ( !     $conn ) {
    echo     "Unable to connect: " . var_dump( OCIError() );
    die();
    }

    // Select Data...

    // DESC[RIBE] COMPANY

    // CompanyID VARCHAR2(10)
    // CompanyName VARCHAR2(30)
    // LastUserID VARCHAR2(15)
    // LastDate DATE
    //


    $query = "SELECT * FROM Company";

    $result = OCIParse($conn, $query);
    OCIExecute($result, OCI_DEFAULT);

    while (    OCIFetchInto ($result, $row, OCI_ASSOC)) {

    // Usage of OCIcolumnisnull()
    if (OCIcolumnisnull($result, 'CompanyName')) {

    print (     "<P>" . $row['CompanyID'] . "--->" . "Company Name NOT found !! " . "<P>" );
    }
    else {

    print (    "<P>" . $row['CompanyID'] . "--->" . $row['CompanyName'] . "<P>" );
    }
    }

    // Close connection from Oracle...

    OCILogoff($conn);
    ?>
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